filthiness vs nastiness

filthiness and nastiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
filthiness	Yes	No	No	No
nastiness	Yes	No	No	No

As nouns, filthiness and nastiness are synonyms defined as:

filthiness and nastiness: a state characterized by foul or disgusting dirt and refuse

Other synonyms of filthiness include filth, foulness.

filthiness (noun)	nastiness (noun)
moral corruption or pollution	the quality of being highly unpleasant
a state characterized by foul or disgusting dirt and refuse	malevolence by virtue of being malicious or spiteful or nasty
	a state characterized by foul or disgusting dirt and refuse